Heel-building machine.



No. 63!,035. Patented Aug. l5, I899.

W. P. BOSWOBTH.

HEEL BUILDING MAGHiNE.

(Application filed June 7, 1898.)

(No Model.) 2 Shaets8heet l,

WITNESSES; 127 A m.

INVENTUR:

WM g

Patented Au l5, I899.

v w. P. aoswomn.

HEEL BUILDING MACHINE.

(Application filed June 7, 1808.) I

2 Sheets-Sheet 2,

(No Model.)

INVENTDRZ I 1 5 I E 51 5 L hb W4 NITED STATES \VENDELL P. BOSWVORTH, OFBROOKTON, MASSACHUSETTS.

HEEL-BUILDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 631,035, dated August15, 1899.

Application filed June 7, 1898. Serial No. 682,816. (No model.)

To all whom it may concern:

Beitknown that LVVENDELLP.BOSWVORTH, of Brockton, in the county ofPlymouth and State of Massachusetts, have invented certain new anduseful Improvements in Heel-Building Machines, of which the following isa specification.

This invention relates to heel-building machines, and has for its objectto provide improvements in the construction and operation of machines ofthis class, as I shall hereinafter more fully set forth.

Certain classes of heels for boots and shoes to the manufacture of whichthis invention particularly relates are built up of lifts or layers cutfrom scrap-leather, most of the pieces being of a smaller size than thefull width of the heel, so that two or more pieces of appropriate shapeare required for each of the lifts, usually with the exception of thetop and bottom lifts. Heels of this character require a mold in whichthey may be assembled, and when the heel is built up to the requiredthickness it is nailed together.

My invention consists in those features of novelty in the constructionand arrangement of heel-building machines which I shall now proceed todescribe and then set forth in the claims hereto appended.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a front elevation of a heel-building machineconstructed in accordance with myinvention. Fig. 2 represents a medianvertical section of the same. Fig. 3 represents a top plan view. Fig. 4represents a detailed sectional view showing the driving parts ininactive position. Fig. 5 represents a detailed view of the presser andits arm. Fig. 6 represents a sectional view of the upper part of themachine, showing the parts in position for use with hand-power.

The same reference characters indicate the same parts in all thefigures.

Referring to the drawings, a represents the frame of the machine, whichis in two parts or halves connected by stays a a. At the upper end ofthe frame is mounted a bedplate I), which supports the sectional moldfor assembling the heel. The said mold is formed, as here shown, in twosections or halves c c, the section 0 being secured to the bed-plate bby means of bolts 0 0 While the section 0 is adapted to slide on the topof the bed-plate and is provided with guide-pins c 0 entering sockets inthe section 0. Springs 0 c are interposed between the two sections ofthe mold and normally act to force the rear section 0 away from theforward section 0.

dis a presser carrier or arm hinged between ears 1) b on the bed-plateand adapted to swing in a vertical plane. The arm (1 carries a presseror follower d, which is secured to the arm by means of bolts d (2 thepresser being rendered adjustable by the regulation of these bolts andadapted to be removed and replaced by a presser of different size orshape. The arm 01 carries at its rear end a pivotal dog d 'which isadapted to bear against an inclined face 2, formed on the rear section 0of the mold, so that when the arm dis moved to bring the presser 01 downinto the mold the dog d acts to force the rear section 0 of the moldtoward the front section 0. Ascrewbolt cl is provided for adjusting theposition of the dog (1 The sides of the mold are shaped to closelyconform to the required shape of the heel, and accordingly with heelshaving straight or nearly straight sides it is necessary to separate theparts of the mold somewhat in order to get the pieces of the heel inplace. It will be understood that with certain shapes of heels, such asthose intended for ladiesshoes, in which the sides of the heel areinclined or tapering, it is not necessary to have the parts of the moldmovable with respect to one another, the mold being in some instancesmade with the parts rigidly united.

e is a clamping-lever pivoted at e to the end of the arm d and having abifurcated lower end, between the forks of which is mounted a roller eThe latter is adapted to engage the cam-formed end of a nose or lug 12which projects from the front edge of the bed-plate b. The saidclamping-lever is for the purpose of exerting pressure upon the heel inthe mold c c and to hold the presser d in place during the nailingoperation, which will be presently de= scribed.

In order to operate the presser, which is shown in inoperative positionin Fig. 5, with the upper or handle portion of the lever e lying backagainst the arm d, the said handle portion is grasped by the operatorand the arm d is swung downwardly to bring the presser (1 against theheel contained in the mold, and the roller e is brought into engagementwith the end of the nose W. The operator then exerts a forward pull onthe lever e, and the action of the roll 6 clamps the presser firmlyagainst the heel.

The under side of the nose 1) maybe formed with a shallow notch badapted to receive the roll 6 and hold the clamping parts in a state ofpressure.

The mechanism for applying nails to the heel is organized as follows:

f is a templet consisting of a cylindrical block fitting tightly in anaperture formed to receive it in the bed-plate b. The upper surface ofthe templet'forms the bottom of the mold.

g g are a series or gang of driver-pins operating in holes in thetemplet f and mounted in a driver-carrier which consists of a plunger orrod g and a plate 9 removably secured to the top of the plunger andcarrying the driver-pins. The driver-carrier g is mounted in a U-bracketg secured by bolts 9 g to the under side of the bed-plate b. WVhenupward force is applied to the driver-carrier, the drivers ascend in thetemplet-holes and serve to drive the nails, which are previously placedin said holes with their points up, into and through the various layersof leather forming the heel in the mold. The points of the nails areclenched or turned over by striking against a hardened-steel plate dsecured to the lower side of the presser d.

g is a spring secured to the driver-carrier g and its bracket g andoperating to retract the driver after an upward stroke.

For the purpose of actuating the nail-driver I provide the followingmechanism:

It is a plunger mounted to slide in a bracket h and carrying at itslower end a roll 7L Below the latter, on a shaft t", is mounted a cam7;, which is secured to the shaft by means of a set-screw 2' in its hubi The shaft 2" is mounted to rotate in bearings i 2' on the frame a, andwhen power is applied to said shaft from a suitable source the cam "i isrotated'and operates to cause an up-and-down reciprocation of theplunger h and the drivercarrier g with its gang of drivers. In order tothrow the plunger h into and out of oper ative relation with the cam,its bracket 77/ is formed with trunnions h M, supported by adjustablepivot-bolts 72. h, and one of the trunnions is provided with an arm 7L5,which is connected to a retractile spring j and to a treadle-rod 7c,operated by a treadle k. The normal position of the parts due to theaction of the spring j is shown in Fig. 4, the bracket and plunger beinginclined at an angle, so as to throw the lower end of the plungercarrying the roll 7L2 away from the cam 2'. When the operator desires toactuate the driver mechanism, he merely depresses the treadle 7c, and byso doing brings the plunger 71. into an upright position, as shown inFig. 2,whereupon the cam 2', which is in constant rotation, causes thereciprocation of the parts, as previously described.

In addition to the treadle mechanism for operating the plunger bracket hI have shown means for operating the latter byhand, including anupwardlyprojecting arm 72, formed on one of the trunnions h and adaptedto be engaged bya hand-lever h pivoted between the ears 71/ 71 formed onthe lower side of the bed-plate b. By depressing the upper end of thislever or handle it the bracket and plunger are brought from their normalposition (shown in Fig. 4) into an upright position, as shown in Fig. 1.

A lug 7?, formed on one side of the frame a and adapted to engage thearm 72 in its downward movement, forms a stop to limit the movement ofthe bracket 71.. The plunger h is preferably provided at its upper endwith a hardened-steel chafing-plate h and the lower end of thedriver-carrier g is provided with a downwardly-projecting screw g whosehead is adapted to rest on this plate when the plunger h is in anupright position. The screw g may be adjusted to regulate the height towhich the driver-pins g may travel, and when adjusted is locked inposition by means of a lock-nut g m is a knockout pin occupying avertical aperture in the templet fand. resting on the inner end of alever 0, pivoted between ears 0' 0' on the bed-plate b. When the outerend of the lever is depressed, the knockout pin is raised and acts todisplace the finished heel and permit the removal of the same.

In the machine as here shown I have also made provision for driving thenails by handpower. For this purpose the bed-plate b is formed on itsside edges with trunnions b b, which are held in bearings formed in thetwo side pieces of the frame a and in cap-blocks a a secured to saidside pieces by means of bolts a a The front ends of the cap-pieces are,as here shown, formed with nail-boxes a a.

When the machine is operated by power, the bed-plate b is held fromturning by means of clamping-bolts a a extending through the sides ofthe frame a and engaging the sides of thebed-plate. WVhenoperatingwithout power, these bolts are loosened, and the bed-plate b isthen capable of turning on its tr unnions. \Vhen operated by hand, theheel is assembled, as previously described, with the parts in theposition shown in Fig. 1, and

the presser is clamped in place by means of the clamping-lever e. Thebed-plate and its attached parts are then reversed to bring them intothe position shown in Fig. 6, the presser-arm at being brought to restagainst a buffer 19, secured to the rear side of the frame a, and thenby striking the end of the driver-carrier g with a mallet the nails areICC IIO

from the spirit of my invention.

I claim- 1. A mold, a presser adapted to enter said mold, avertically-swinging hinged arm carrying said presser, a relatively-fixedpart, and a lever pivoted to the presser-arm, said lever havingprovisions on one side of its pivot for engaging said fixed part toclamp the presserarm thereto, and having an elongated handle portion onthe other side of said pivot, adapted to be grasped to move thepresser-arm into and out of operative position and to operate the clamp.

2. An invertible support carrying a mold, a presser carried on saidsupport and adapted to enter the mold, means for clamping said presserin operative position, a driver-carrier havinga gang of drivers adaptedto operate through the bottom of the mold, a guide for saiddriver-carrier mounted on the support, and a stop or rest for supportingthe said support and the parts carried thereby in inverted position.

3. A heel-building machine comprising a mold, a presser adapted to enterthe mold, a gang of drivers and a carrier therefor, a pivotal bracketcarrying a plunger, adapted to engage the driver-carrier, a camforoperating said plunger to actuate the drivers, and means for movingthe bracket to throw the plunger into and out of operative relation withthe cam.

4. A heel-building machine comprising a driver-carrier, a shaft carryinga cam, a reciprocatory plunger adapted to effect connection between saidcam and the driver-carrier, whereby the latter is reciprocated, a guidein which said plunger reciprocates, and means for moving said guide tocarry the plunger into and out of operative position.

A heel-building machine comprising a driver-carrier, a shaft carrying acam, a plunger adapted to eifect connection between said cam and thecarrier, whereby the latter is reciprocated, a pivotal bracket carryingsaid plunger, a spring connected with the bracket and normally holdingthe same with the plunger out of operative position, and means formoving the bracket to throw the plunger into operative position.

6. A heel-building machine comprising a driver-carrier, a shaft carryinga cam, a plunger adapted to effect connection between said cam and thedriver-carrier, whereby the latter is reciprocated, a pivotal bracketcarrying said plunger, means normally holding the bracket with theplunger out of operative position, an arm on said bracket, and a treadleconnected with said arm and adapted to move the bracket so as to throwthe plunger into operative position.

7. A heel-building machine comprising a driver-'carrier, a shaftcarrying a cam, a plunger adapted to effect connection between said camand the driver-carrier, whereby the latter is reciprocated, a pivotalbracket carrying said plunger, meansnormally holding the bracket withthe plunger out of operative position, an arm on said bracket, and ahand lever disconnected from said arm but adapted to engage the same andmove the bracket so as to throw the plunger into operative position.

8. A heel-building machine comprising a mold having relatively movablesections normally held apart, a swinging hinged presser arm carrying apresser-block adapted to enter the mold, and a cam on said arm adaptedto bear against the mold and close the same when the arm is swung in thedirection of the mold.

9. A heel-building machine comprising a mold having relatively movablesections normally held apart, a swinging hinged presserarm carrying apresser-block adapted to enter the mold, a cam on said arm adapted tobear against the mold and close the same when the arm is swung in thedirection of the mold, and means for adjusting said cam.

10. A heel-building machine comprising a mold-bed, a mold having a fixedmember attached to said bed, and a movable member adapted to slide onsaid bed, springs normally holding the movable member away from thefixed member, a verticallyswinging presser-arm hinged to the mold-bedadjacent to the movable mold member, and carryinga presser-block adaptedto enter the mold, and a cam on said presser-arm adapted to engage themovable mold member and move it toward the fixed mold member when thepresserarm is swung downward toward the mold.

In testimony whereof I have affixed my signature in presence of twowitnesses.

WENDELL P. BOSWORTI'I.

\Vitnesses:

G. F. BROWN, D. W. BEAL.

